Shoe-sewing machine



W. C. MEYER. SHOE SEWING MACHINE.

APPLICATION FILED APR. 7. 1920.

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W. C. lMEYER.

SHOE SEWING MACHINE.

APPLICATION FILED APR.7,1920.

v QNN A NNN Patented Apr. 4, 1922.

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SHOE SEWING MACHINE. APPLICATION FILED APR. I. 1920.

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WVG. MEYER.

' SHOE SEWING MACHINEi APPLlcATloN FILED APR. z. 1920.

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UNITED STATES PATENT OFFICE.

WILLIAM CRISTIAN MEYER, OF BEVERLY, MASSACHUSETTS, ASSIGNOR TO UNITEDSHOE MACHINERY CORPORATION, OF. PATERSON, NEW JERSEY, A CORPORATION 0FNEW JERSEY.

SHOE-SEWING- MACHINE,

' Application filed April 7,

To @ZZ rtf/rom, t may concern:

Be it known that I, WILLIAM C. Merini, a citizen of the United States,residing at Beverly, in the county' of Essex and State of Massachusetts,have invented certain new and useful Improvements in Shoe-SewingMachines; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which` it appertains to make and use the same.

This invention relates to machines for sewing a welt and an upper to theinsole of a welted shoe and, more particularly, to delvices for holdingthe end of the welt in po sition at the beginning of a sewing operation.A

The primary object of the invention is to improve and simplify theconstruction and mode of operation of the devices in machines of thisclass, for holding the end of the welt in position to be attached to theupper and insole during the first part of a seam formation.

l'ith this object in view the invention consists in certain novel andimproved constructions, arrangements and combinations of partshereinafter described and particularly pointed out in the claims, theadvantages of which will be readily understood and appreciated by thoseskilled in the art.

The invention is designed particularly as an improvement on the machineillustrated and described in applieants pendingr appli.- cation, SerialNo. 95,893, filed May 6, 1916, renewed June 17, 1920, Serial No.389,77Ll.

The. machine covered by this application is v provided with devices forgripping and severing the welt between the shoe and the ma-` chine uponthe completion of a seam andl with a welt holder which acts incooperative 'relation Vwith these devices. Certainfeatures 0f theinvention, however, are not limited to use in combination with devicesfor gripping Vand severing the welt, but may be yemthe welt is sevbodiedin machines in which The invention will be readily understood from theaccompanying drawlngs illustrating a machine embodying the invention `inits preferred form, yand the following detailed description of theconstructions ,there` in shown.

In the drawings Figure 1 is a view in side elevation of a shoe sewingmachine embody- Specification of Letters Patent.

PatentedApr.. et, 1922. 1920. serial Nn. 372,030.`

ing theinvention; Fig. 2 is a View in horizontal section illustratingparticularly the devices for handling the welt; Fig.` 3 is a view inside elevation, partly broken awav and partly in section, lookingfromthe right and illustrating particularly the welt severing and grippingmechanism and the welt holder mechanisimFigQd is a view inverticalsection illustrating the welt severing and gripping mechanismand the welt holder mechanism; Fig. 5 isa detail view in side elevationlookingfrom the left and illustrating the welt holder` mechanism,and'Fig. 6

is a detail plan view.v of one'of the parts shown in Figs. 2 and t.

The machine illustrated in the drawings has the same generalconstruction, 'arrange` ment and mode of operationof parts as theijnachine illustrated and4 described inapplicant"s pending applicationreferred to above. The machine comprises an oscillatory curved hookneedle 2 and devices cooperating therewith to formA a chain stitch seam,an awl or feed point et, a channel guide 6, and a welt guide 8. Allofthese parts and their operating mechanisms have substantially the sameconstruction'. arrangement, and mode of operation as the correspondingparts of the machine covered by applicants pending ap plication and neednot be further described herein.

The devices for severing and holdingthe welt at the completion of theysewing operation, are substantially the same as in the machine `ofapplicants pending application and comprise welt gripping jaws 10 and1Q.` and a welt severing 4linifelt which are held in retracted positionduring the sewing of a shoe and are ,advanced to sever `and hold thewelt after the sewing operation has been completed and the machinebrought to rest. The welt gripping jaws are respectively formed onlevers 16 and 18 pivoted on the forward end of a gripper slide 20 ,andacted upon vby a spring QQ'which ynormally holds the levers in positionwithy the gripping jaws open. The knife la isk secured to the forwardend of a slide 2dineuntedto slide in guides in the gripper slide 20. j

The gripper slide is advanced with the knife slide during the first partofthe advancing movement of the knife slide through the engagementofrolls 26 mounted on the knife slide with the rear end of the lever 16,the lever then being held :from pivotal movef wir* i ment by theengagement of a lateral projection on the rear end of the lever with theplate 30. The forward movement of the gripper slide is limited by theengagement of a projection 27 on the slide with the rear end of thecuide-way through which the slide moves. oWhen the gripper slide reachesary through the engagement of the lateral.

projection on the lever 16 in the recess in the plate 30. At a certainpoint in the retracting movement ofthe knife slide the rolls 26 aredisengaged from the lever 16 allowing the lever to be actuated by thesprin 22 to disengage the lateral projectlon t ereonA from t e recess inthe plate 30, and ,the gripper slide is then retracted with the knifeslide` by the engagement of a boss 31 `on the knife slide with the rearend of a slot 28 in the'gripper slide.

The mechanism for advancing and re tracting the knife slide comprisesapivoted gear segment 32 meshing with rack teeth formed on the knife.slide, a heavy coiled spring 34 for swinging .the gear-segmentin adirection to retract the knife slide, a bell crank lever 36 connectedwith the gear seg- Vment by means of` a link 38, an intermittentlyrotating eccentricfiO mounted on the main shaft 42 of the machine andconnected with the bell crank 36 by an eccentric strap 44 `for actuatingthe gear segment 32 to ad- Vance' the knife slide. e The knife slide is-`held in advanced position by the engagement `with the rear end of theslide of a pivoted latch lever 46which is actuated tok release the knifeslide through the engage# ment of a roll 48` `carried by said lever witha carrr` formed on the periphery of acarn disk mounted on the main shaft42.

rI`he eccentric 40 is normally Iheld station-V ary and is arrangedvto bedriven from the main shaft 42 through a Horton clutch (not shown) which,is controlled by means of latches 50 and 52m-ranged to act on a clutchcontrolling member 54. The latch 50 which holds the clutch controllingmember stationary and the clutch out of action duringr the ,normaloperation kof the machine Vis connected by means of a shaft 56, an armA58 and aired 60 with a, lever 62 arranged to be actuated by the forwardpull imparted to the welt in removing a shoe fromthe machine. y Theactuation of this lever through the connections described throws out thelatch 50 and causes the clutch to be thrown `into operationtoVl advancethe cutter slide gripper' slide, brieiy described above, has y the sameconstruction, arrangement and mode of operation as thev correspondingmechanism of the machine covered by applicants above application,andreference may be had to said application for a full andcompletedescription of the same.

The present machine is preferably provided "with mechanism, like themachine of applicants pending application which is under the control ofthe operator and, which when thrown into operation .acts 4to arrest theforward rotation of the main shaft, then to impart a reverserotationsto-the shaft, and finally to bring the shaft to rest at apredetermined point in its'rotary movement. The reverse rotationimparted to the shaft reverses the cycle of operations of the stitchforming mechanism to cast oli the thread from the needle,` and the shaftis finally brought Vto rest with the needle in retractaui position topermit' the ready removal of the.

shoe. As the operator disengages the shoe from the machine, a movementis impartedl devices remain in the 'positionswhichthevthus assume untila new seam is starte Upon the starting of a seamtupon the suc;- ceedmgshoe, the latch lover 46 is actuated to release the cutter slide,y thewelt `rip`fping jaws are relatively actuated to re ea's the welt andthewelt cutter and gripper slidesare retracted to their` normal Pos1-tions. position to vbe'attachecltotheshoe after it is released bythewelt gripping devices, the

present machine V like the 'machine of ap plicants pending applicationis provided` with a supplementary welt holder which is normallyY held inretracted position out of,

To hold' the free end of the welt in operation and is thrown intooperation upon starting the machine. As the welt cutter and gripperslides are retracted, the welt holder is moved forward into engagementwith the welt between the extreme end thereof and the needle movedlaterally in the direction of feed during the initial feeding` movementof the shoe, and is then retracted out of operating position. Themechanism for controlling and operating t-his welt holder is ofsimplified and improved construction. rlhe welt holder indicated at 68.consists of a linger mounted on a carrier and is arranged to engage theouter side of the welt and press the same into Contact with the shoe.The carrier 70 is pivoted by means of a pivot stud 72 onthe forward endof a slide "71. The welt holder is advanced and retracted. by themovements of the slide 74, and is carried in the direetion of the lineof feed by swinging the.`

carrier 70 about the pivot stud 72. The slide. 71 is acted upon by acoiled spring 76 connected with a forwardly extending arm on a bracket'T7 secured to the rear end of the slide which tends to advance theslide. The slide, however, is normally held in re- -traeted position bymeans of a latch 7S pivoted at 80 on the frame, the rear end of which isarranged to vengage a projection formed on the bracket 77. The latch isacted upon by a spring Set which tends to depress the rear end thereofinto acting position.

The latch 78 is actuated to release the slide 71 as the gripper slide 20is retracted. ATo this end a dog 86 is pivoted on a stud 8S carried bythe gripper' slide and is arranged to engage a projectionQO. formed onthe forward end ofthe latch. The dog` 86 is acted upon by a light coiledspring- 92-whieh tends to depress the acting end thereof, and themovement of the dog under the action of the spring is limited by theengagement of a projection onthedog with a stop 91 on the gripper slide.The projection is formed with oppositely inclined forward and rearfaces, as clearly shown in Fig. 3, arranged to be engaged by the actingend of the dog 86.

During the normal operation of the machine, the gripper slide and weltholderslidc both then being in retracted position., the acting end ofthe dog 8G is located behind the projection 90. During the advancingmovement of the gripper slide the dog is lifted by its engagement withthe rear inclined face of the projection 90, the dog passing idly by theprojection. During the retracting movement of the gripper slide the dogengages the forward inclined face of the projection 90, and the forwardend of the latch 78 is depressed, thereby releasing the welt holderslide Tl and allowing the same to be advanced by the coiled spring 76.

VAfter the initial feed of the shoe has taken place, the slide 74 isretracted to its normal position lby means of a cam lever 96 pivoted at9S, the lower end of which is arranged to engage an abutment 100 formedon the forwardly extending arm of the bracket 77, and the upper end ofwhich carries a cam roll 102 arranged to engage in a cam groove in a camdisk mounted on the main shaft 112. Then theI slide yreaches itsretracted position the latch 7 8 engages in front of the projection onthe bracket T7 and holds the parts in position.

The mechanism for swingingl the Vcarrier 7 0 to move the welt holder inthe direction of feed comprises a slide 104, one end of which pivotallyconnected at 10G with a continuously oscillating lever 108, and theother end of which engages in a guide-way in the frame of the machine,as clearly shown in 'F 2 and 4. The slide `1041 carries a catch 110,pivotedon a stud 109 and having a depending projection 111 arranged toengage an upstanding projection 112 formed on a rearwardly extending armon the carrier 70. The catch? 110 is acted upon by a coiled spring` 114which normally maintains the same in the position yshown in Figs. 2 and4, the movement of the catch under the action of the spring beinglimited by the engagement of a. stop 116 on the cat-eh with the slide104. The lever 108 is -the lever by which the feed slide is actua-ted.Then the machine is stopped with the needle in its limiting retractedposition, the parts of the machine occupy the positions which theyassume at a point in a cycle of operations when the feeding devices haveexecuted only ay part of their advance movement. Upon starting themachine these devices complete their advance movement atronce, thelower, arm of the feeding lever 108 then swinging to the left. As theslide 74 is advanced to carry the welt holder into engagement with theshoe the projection 112 on the welt holder carrier `engages the rearside of the projection .i111 onthe catch 110 and swings the catchforwardly. As the lower arm of the feeding lever swings to the left,however, thel projection 111 is carried to the left beyond theprojection 112 and the catch 110 is then swung rearwardly into actingposition. Then as the feeding lever 108 is swung in the oppositedirection the carrier 70 is swung in a direction to carry the weltholder in the direction of feed by the engagement of the projection 111with the projection 112. As the slide 74 is re tracted the projection112 is disengaged from the projection 111 by the rearward movement ofthe carrier 70.

Having explained the nature and object of the invention, and havingspecifically described a machine embodying the invention in itspreferred form, what is claimed is:

1, AA welt shoe sewing machine having, in

con'ibination, stitch forming mechanism including a curved hook needle,`welt cutting and gripping devices, means for advancing and retractingsaid devices, a welt holder, a spring it'or advancing the welt holder, alatch for holding the welt holder in retracted position, means operatedby the welt cutting and gripping devices during their retractingmovement for releasing the lat-ch, and means for retracting the weltholder.

2. A welt shoe sewing machine having, in combination, stitch formingdevices'including a curved hook needle, welt cutter and welt gripperslides, means 'for advancing and retracting said slides, a welt holder.ya spring tor advancing the welt holder, a latch for holdingi the weltholder in retract ed position, a pivoted dogr carried by one of saidslides for engageiuent with the latch, arranged to pass idly by thelatch during the advancing movement of the `slide and to throw out thelatch during the retracting movement of the slide, and means forretracting the welt holder.

3. A welt shoe sewing machine, having in combination, stitch formingdevices includ ing a curved hook needle. welt cutting and gri pingdevices, a welt holder, a slide upon hwhich lthe welt holder is mounted,a spring for advancing the slide, apivoted latch for engagement with anabutment on the slide for holding theslide in retracted position, meansoperativeV by the welt cutting and gripping devices during theirretracting movement for releasing the latch, and a cam lever forengagementwith an abutment carried by the slide for retracting` theslide.

LA welt shoe sewing machine having in combination, Stitch formingdevices including a curved hook needle, welt cutter and welt gripperslides, a welt holder,V a welt holder slide, a spring for advancing thewelt holder slide, a pivoted latch for engagement with an abutment onthe welt holder slide for holding said slide in retracted position, apivoted dog carried by one of said first slides Vfor engagement with thehitch arranged to pass idly by the latch during the advancing movementot' said slide and to throw out the latch during the retracting movementof the slide` and a cam lever arranged to en age an abutment carried bythe welt hol er slide for retracting the welt holder slide.

5. A welt shoe sewing machine, having in combination, stitch formingdevices including a curved hook needle, a forwardly and rearnf'ardlymovable welt holder slide, a welt holder, a carrier therefor pivoted onthe slide, a second slide Inounted for Inovement in the direction olfeed, means for constantlyIv reciprocatingthe slide, and a pivoted catchcarried by the latter slide for engagement with said carrier to swingsame and thereby move the welt holder iu the direction of feed.

A welt shoe sewing machine having in combination, stitch fdr-mingdevices including a curved hook needle, a welt holder. a carriertherefor mounted tor orwar and rearward movement and also for movementto carry the Welt holder in the direc-- tion of feed, a member mountedfor reciprocatory movement in the direction of feed, means forconstantly reciprocating said member and a catch carried by said lmemberforl engagement with the carrier to actuate the same to move the weltholder inthe direction of feed arranged to be engaged with anddisengaged from the'carri respectively by the forward and rearwardmovements of the carrier.

7. VA welt shoe sewing machine having .in combination, stitch formingdevices including a curved hook needle, a welt holder, a movable carriertherefor, means for advancing and retracting the carrier and means formoving the carrier to carry the welt holder in the direction of feedcomprising a slide, means for constantly reciprocating the slide and a-)ivoted catch for connecting the welt hol er with the slide.

VILLIAM CRISTIAN MEYER.

